Sense OrgansDrosophilaLateral Line SystemPeripheral Nervous SystemDrosophila ProteinsGene Expression Regulation, DevelopmentalSmellMechanoreceptorsMorphogenesisReceptors, NotchNerve Tissue ProteinsBody PatterningDrosophila melanogasterBasic Helix-Loop-Helix Transcription FactorsHeadGenes, InsectInsect ProteinsSense of CoherenceNervous SystemHomeodomain ProteinsEctodermCell LineageEmbryo, NonmammalianExtremitiesNeurons, AfferentTranscription FactorsTissue and Organ ProcurementIn Situ HybridizationOrgan TransplantationImmunohistochemistryMutationModels, BiologicalPhenotypeCell DifferentiationStem CellsSignal TransductionMembrane ProteinsDNA-Binding Proteins